"Our Sun is much like other stars, and not an anomaly because of its magnetic poles that flip every 11 years, scientists said.
The report in the journal Science aims to lay to rest the controversy over whether our solar system's star is cyclic, like other nearby, solar-type stars.
"We have shed light on a fundamental mechanism which determines the length of these cycles, which helps us understand the cycle itself over the long-term," lead author Antoine Strugarek, a researcher at the University of Montreal, told AFP.
"We can therefore say of the Sun's next magnetic cycle in 10 or 20 years will be intense, long or short, which helps us understand among other things what kind of satellites to put in orbit and the most favorable launch windows."
Activity on the Sun, from the number of sunspots to levels of radiation and ejection of material, varies on an 11-year cycle.
These changes are driven by the Sun's magnetic field.
Scientists have long believed that our Sun was unusual because it did not match the magnetic cycles observed on other solar-type stars.
So researchers carried out a series of simulations of stellar magnetic fields, and showed that the Sun's magnetic cycle depends on its rotation rate and luminosity, said the report.
They compared their simulations with observations of cyclic activity in nearby solar-type stars, and found that indeed, the cycle periods of the Sun and other solar-type stars all follow the same relationship.
"This research shows that the 11-year cycle is the principal cycle of all solar-type stars," said Allan Sacha Brun, Head of the Laboratory Dynamics of Stars and their Environment and principal investigator of the European Research Council project called STARS2.
"
'via Blog this'Source: Study finds our Sun is like other stars, resolving mystery:
FREE SYMPOSIUM OF AMB. JUAN
Friday, July 14, 2017
Cook Islands creates huge Pacific Ocean marine reserve: "The idea is not to ban commercial fishing or mineral exploration outright, but to ensure it is carried out in a sustainable manner. However, there will be a core no-fishing zone totalling about 320,000 sq km, extending 50 nautical miles from the coastline of each island", Kevin Iro, Environmentalist
"The Cook Islands has created one of the world's largest marine sanctuaries, protecting a vast swathe of the Pacific Ocean more than three times the size of France.
Legislation setting up the 1.9 million square kilometre (735,000 square mile) reserve passed through the tiny nation's parliament late Thursday.
Environmentalist Kevin Iro, who first proposed the idea more than five years ago, said it was a landmark achievement that would help preserve the ocean for future generations.
"It's a historic time, particularly because everyone supported it, including our traditional leaders who spearheaded the whole thing," he told AFP.
The Cook Islands has a population of just 10,000 and its 15 islands have a combined landmass of 236 sq km, barely the size of Washington DC.
But its isolated position in the Pacific, about halfway between New Zealand and Hawaii with no near neighbours, means it has a huge maritime territory.
Iro said Cook Islanders had an affinity with the ocean and viewed it as sacred but overfishing and pollution had damaged the marine environment, including the coral reefs that once ringed all the islands.
He said the marine reserve, known as Marae Moana, would give the environment a chance to heal, allowing the islanders to protect their legacy.
"When I moved back here (from New Zealand) about 16 years ago I saw what was happening to the lagoons and reefs and really wanted to protect them for my kids," he said.
"I want them to have the same experience I did as a boy growing up."
The idea is not to ban commercial fishing or mineral exploration outright, but to ensure it is carried out in a sustainable manner.
However, there will be a core no-fishing zone totalling about 320,000 sq km, extending 50 nautical miles from the coastline of each island.
Prime Minister Henry Puna said Marae Moana provided a blueprint for managing ocean environments worldwide.
"Together we had a vision to turn our little country into the cleanest and greenest tourism destination in the whole wide world," the Cook Islands News quoted him as telling parliament.
"We not only recognise that the ocean brings us revenue in terms of fishery and tourism and potentially sea bed minerals -– it also provides us with clean air, clean water, and clean food to nourish and sustain us.""
'via Blog this'Cook Islands creates huge Pacific Ocean marine reserve:- AFP News
Legislation setting up the 1.9 million square kilometre (735,000 square mile) reserve passed through the tiny nation's parliament late Thursday.
Environmentalist Kevin Iro, who first proposed the idea more than five years ago, said it was a landmark achievement that would help preserve the ocean for future generations.
"It's a historic time, particularly because everyone supported it, including our traditional leaders who spearheaded the whole thing," he told AFP.
The Cook Islands has a population of just 10,000 and its 15 islands have a combined landmass of 236 sq km, barely the size of Washington DC.
But its isolated position in the Pacific, about halfway between New Zealand and Hawaii with no near neighbours, means it has a huge maritime territory.
Iro said Cook Islanders had an affinity with the ocean and viewed it as sacred but overfishing and pollution had damaged the marine environment, including the coral reefs that once ringed all the islands.
He said the marine reserve, known as Marae Moana, would give the environment a chance to heal, allowing the islanders to protect their legacy.
"When I moved back here (from New Zealand) about 16 years ago I saw what was happening to the lagoons and reefs and really wanted to protect them for my kids," he said.
"I want them to have the same experience I did as a boy growing up."
The idea is not to ban commercial fishing or mineral exploration outright, but to ensure it is carried out in a sustainable manner.
However, there will be a core no-fishing zone totalling about 320,000 sq km, extending 50 nautical miles from the coastline of each island.
Prime Minister Henry Puna said Marae Moana provided a blueprint for managing ocean environments worldwide.
"Together we had a vision to turn our little country into the cleanest and greenest tourism destination in the whole wide world," the Cook Islands News quoted him as telling parliament.
"We not only recognise that the ocean brings us revenue in terms of fishery and tourism and potentially sea bed minerals -– it also provides us with clean air, clean water, and clean food to nourish and sustain us.""
'via Blog this'Cook Islands creates huge Pacific Ocean marine reserve:- AFP News
Cook Islands creates huge Pacific Ocean marine reserve: "The idea is not to ban commercial fishing or mineral exploration outright, but to ensure it is carried out in a sustainable manner. However, there will be a core no-fishing zone totalling about 320,000 sq km, extending 50 nautical miles from the coastline of each island", Kevin Iro, Environmentalist
"The Cook Islands has created one of the world's largest marine sanctuaries, protecting a vast swathe of the Pacific Ocean more than three times the size of France.
Legislation setting up the 1.9 million square kilometre (735,000 square mile) reserve passed through the tiny nation's parliament late Thursday.
Environmentalist Kevin Iro, who first proposed the idea more than five years ago, said it was a landmark achievement that would help preserve the ocean for future generations.
"It's a historic time, particularly because everyone supported it, including our traditional leaders who spearheaded the whole thing," he told AFP.
The Cook Islands has a population of just 10,000 and its 15 islands have a combined landmass of 236 sq km, barely the size of Washington DC.
But its isolated position in the Pacific, about halfway between New Zealand and Hawaii with no near neighbours, means it has a huge maritime territory.
Iro said Cook Islanders had an affinity with the ocean and viewed it as sacred but overfishing and pollution had damaged the marine environment, including the coral reefs that once ringed all the islands.
He said the marine reserve, known as Marae Moana, would give the environment a chance to heal, allowing the islanders to protect their legacy.
"When I moved back here (from New Zealand) about 16 years ago I saw what was happening to the lagoons and reefs and really wanted to protect them for my kids," he said.
"I want them to have the same experience I did as a boy growing up."
The idea is not to ban commercial fishing or mineral exploration outright, but to ensure it is carried out in a sustainable manner.
However, there will be a core no-fishing zone totalling about 320,000 sq km, extending 50 nautical miles from the coastline of each island.
Prime Minister Henry Puna said Marae Moana provided a blueprint for managing ocean environments worldwide.
"Together we had a vision to turn our little country into the cleanest and greenest tourism destination in the whole wide world," the Cook Islands News quoted him as telling parliament.
"We not only recognise that the ocean brings us revenue in terms of fishery and tourism and potentially sea bed minerals -– it also provides us with clean air, clean water, and clean food to nourish and sustain us."
Puna's office did not immediately respond to a request for comment."
'via Blog this'AFP News, Cook Islands creates huge Pacific Ocean marine reserve:
Legislation setting up the 1.9 million square kilometre (735,000 square mile) reserve passed through the tiny nation's parliament late Thursday.
Environmentalist Kevin Iro, who first proposed the idea more than five years ago, said it was a landmark achievement that would help preserve the ocean for future generations.
"It's a historic time, particularly because everyone supported it, including our traditional leaders who spearheaded the whole thing," he told AFP.
The Cook Islands has a population of just 10,000 and its 15 islands have a combined landmass of 236 sq km, barely the size of Washington DC.
But its isolated position in the Pacific, about halfway between New Zealand and Hawaii with no near neighbours, means it has a huge maritime territory.
Iro said Cook Islanders had an affinity with the ocean and viewed it as sacred but overfishing and pollution had damaged the marine environment, including the coral reefs that once ringed all the islands.
He said the marine reserve, known as Marae Moana, would give the environment a chance to heal, allowing the islanders to protect their legacy.
"When I moved back here (from New Zealand) about 16 years ago I saw what was happening to the lagoons and reefs and really wanted to protect them for my kids," he said.
"I want them to have the same experience I did as a boy growing up."
The idea is not to ban commercial fishing or mineral exploration outright, but to ensure it is carried out in a sustainable manner.
However, there will be a core no-fishing zone totalling about 320,000 sq km, extending 50 nautical miles from the coastline of each island.
Prime Minister Henry Puna said Marae Moana provided a blueprint for managing ocean environments worldwide.
"Together we had a vision to turn our little country into the cleanest and greenest tourism destination in the whole wide world," the Cook Islands News quoted him as telling parliament.
"We not only recognise that the ocean brings us revenue in terms of fishery and tourism and potentially sea bed minerals -– it also provides us with clean air, clean water, and clean food to nourish and sustain us."
Puna's office did not immediately respond to a request for comment."
'via Blog this'AFP News, Cook Islands creates huge Pacific Ocean marine reserve:
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